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Date Functions
This section describes functions and operators for examining and manipulating date values.
| Function | Description | Example | Result |
|---|---|---|---|
current_date |
Current date (start of current transaction) | ||
date_part(part, date) |
Get subfield (equivalent to extract) | date_part('year', DATE '1992-09-20') |
1992 |
date_trunc(part, date) |
Truncate to specified precision | date_trunc('month', DATE '1992-03-07') |
1992-03-01 |
extract(part from date) |
Get subfield from a date | extract('year' FROM DATE '1992-09-20') |
1992 |
strftime(date, format) |
Converts date to string according to format (see Date Format) | strftime(date ‘1992-01-01’, ‘%a, %-d %B %Y’) | Wed, 1 January 1992 |